Permutation-padlock.



R J HERENDEEN.

PERMUTATIONPADLOCK. APPLICATION FILED OCT. 5. 1914.

Patented June 26, 1917.

R. J. HERENDEEN, OF -WHAT CHEER, IOWA.

PERMUTATION-PADLOOK.

Specification of Letters Patent.

Patented J une 26, 1917.

Application filed. October 5, 1914. Serial No. 865,149.

To all whom it may concern:

Be it known that I, R. J. HERENDEEN, a citizen of the United States, residing at hat Cheer, in the county of Keokuk and State of Iowa, have invented certain new and useful Improvements in Permutation- Padlocks, of which the following is a specification.

This invention relates to improvements in looks and latches and more specifically to permutation padlocks. V

The object of my invention is to provide a padlock of the combination type which may be locked or unlocked without the use of a key, and for that reason is as secure against opening as a combination safe lock. At the same time, my lock is simple in construction, durable and eflicient in operation.

Other objects of this invention'not at this time more particularlyenumerated, will be clearly understood from the detailed description and drawings forming a part of this specification.

Furthermore, this invention consists in the novel arrangement and combination of parts more particularly described in the following specification and embodied in the claim appended hereunto and forming a part of this application.

Referring now to the drawings, which are merely illustrative of my invention, Figure 1 is a side elevation of my look while Fig. 2 is a vertical section, and Fig. 3 a top plan view thereof. Fig. 1 is a cross section taken on the line H of Fig. 1 showing the parts in unlocked position, while Fig. 5 is a cross section taken on the line 5-5 of Fig. 2 showing the parts in locked position. Fig. 6 is a side elevation of the core with base and top plates. Fig. 7 is a detail view of the staple of my lock. Fig. 8 is a vertical section of a modification of my lock showing the application of a spring in operation to throw open the staple.

Referring further to the drawings wherein similar reference characters designate similar parts throughout the respective views, 1 designates a base-plate upon which is mounted a core 2, provided along the length and on one side thereof with a con cave slot 3. A recess 4: is made at the-top of said core 2 coincident with though extending inwardly relatively farther than the concave slot 3. Opposite to said recess 4 is a concave recess 5, extending downwardly a certain distance from the top of said core.

A plurality of rings 6 are adapted to fit around the core 2, each of said rings being provided with an inwardly extending flange 7 circumferentially thereof, and each of said flanges having a concave portion 8 at a certain point on the inside thereof. The upper ring, however, has a recess 9 formed on one side thereof immediately adjacent the con- ,cave portion 8 thereof, and on the opposite side the flanges of said ring is out out at 10 for a certain distance along the circumference thereof. Numbers, letters, or characters 16 of any kind desired are placed in alinement on the outside of said rings and on the base-plate 1 opposite the said concave portions 8; other numbers, letters, or characters being spaced apart around said rings and base-plate, so that when the particular combination of numbers, letters, or characters, are in alinement at a certain point on the base-plate, all of the concave portions 8 will register and the lock will be open. A staple 11 having arms of unequal length has a plurality of lugs 12 formed on the longer arm thereof so that the space between said lugs will register with the flanges when the staple is inserted in the opening formed in the core and the flanges when the concave portions of both register. A pin 13 is fixed to said staple at a certain point thereon opposite the said lugs 12. A top plate 14, pro vided with perforations for the staple 11 is placed in position over the core and rings and both the top plate and the base plat-e are then welded to the core.

In the modification shown in Fig. 8 a depression is made in the core 2 adapted to form a housing for a leaf spring 15 mounted therein. The free end of said spring engages with the short end of said staple so that when the combination is turned to the unlocked position the spring will automatically release the staple.

To assemble the parts of my device three of the rings 6 and the top ring are placed around the core 2 above the base-plate 1, so that the slots in the flanges will register with the slot in the core. The long end of the staple is then inserted in the opening thus formed between the flanges of the rings and the core so that the pin 13 will rest upon the base of the slot 3. The top plate is then placed above the core to which it and the base-plate are welded solidly. When the short end of the staple is pressed into the perforation in the top plate and any of the rings are turned, the flanges 7 engage with the long end of the staple between the lugs 12 thereof and the staple is locked. By turning the rings so that the letters, figures, or characters opposite the concave portions thereof Will register, the staple is unlocked. The shoulder formed on one side of the recess 9 acts as a stop to the turning of the staple by reason of its engagement with the pin 13 when the staple is turned around. The said pin 13 also prevents the staple from being entirely removed from the lock. The utility, adaptability, and advantages of my improved form of permutation padlock being obviously apparent, it is unnecessary to further enlarge upon the same herein. Having now described and pointed out the new and useful features of my invention, I do not limit myself to the shape of certain parts where the shape is not essential, nor do I restrict myself to the exact details of construction shown and described, but mean and intend to claim all equivalents and variations thereof not departing in principle from my invention and falling within the purview of the appended claim.

WVhat I claim as my invention and desire to secure by Letters Patent is:

In a device of the class described the combination of a core having a vertically eX- tending groove on the peripheral wall thereof and a recess in the upper face adjacent said groove, a base plate substantially larger than the core mounted on one end thereof, a staple formed with a long and short arm, the longer arm being provided with a plurality of slots spaced apart in the outer face thereof, a plurality of rings mounted on the base plate in superposed relation around said core adapted to engage said slots, a pin mounted on the long arm adapted to engage in said recess limiting the movement of the staple, the upper ring having a recess formed there in, a shoulder formed on the upper ring adjacent the last mentioned recess providing a stop for the turning of the staple, a depression formed on the upper face of the core forming a housing, a leaf spring mounted therein, and a cap member mounted on the core having a pair of openings therein adapted to receive the arms of the staple.

In testimony whereof I afiix my signature in presence of two witnesses R. J. HERENDEEN. Witnesses: I r

T. C. LEGOE, W. H. LAMB.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

